Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Flooring > Tiling, ceramics, marble

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-18-2013, 05:36 AM   #31
Member
 
Join Date: May 2011
Location: Ottawa, Canada
Posts: 71
Rewards Points: 75
Default

Trying to figure out what might have cracked our tiled floor


I think it's mortar, it feels sandy when you scrap some off.

cdnNick is offline   Reply With Quote
Old 04-18-2013, 07:22 AM   #32
Member
 
Join Date: Dec 2011
Location: zentral Iowa
Posts: 1,231
Rewards Points: 548
Default

Trying to figure out what might have cracked our tiled floor


I can't tell how much you've scraped up already, but it looks like there was good coverage where those 3 or 4 tiles were, and spotty elsewhere.

Maybe this has been brought up already, but it is good to apply the mortar with the flat side of the trowel first, then I like to go over it a few times in a few directions with the trowel to burn it in. This isn't always necessary, but I've been doing it the past few days on concrete to make sure it has good contact everywhere.

I like to burn the mortar onto the back of the tile as well. I go around and around a few times and finish by troweling off as much as possible.

Then finish with a comb in the same direction everywhere, very uniform. Set the tile and move it a bit back and forth perp to the comb pattern.

This will knock down the ridges and when you remove the tile, you won't see any comb marks and you will have 100% bond with the tile and the floor.

You don't always have to massage the mortar into the floor as I've described. Denshield doesn't absorb moisture, so the mortar spreads easier. You don't always have to burn the mortar into the back of the tile either. But it is added insurance, especially on larger tile and on a floor with some imperfections.

I have laid some very cheap ceramic wall tile which I had to soak in water first to even be able to burn the mortar into them.
cleveman is online now   Reply With Quote
Old 04-18-2013, 07:30 AM   #33
Member
 
Join Date: May 2011
Location: Ottawa, Canada
Posts: 71
Rewards Points: 75
Default

Trying to figure out what might have cracked our tiled floor


All I did to the floor was sweep it, what you see on the plywood is what was left after breaking or prying up the tile. As I said before it felt way to easy when I was pulling it up. I plan on using Ditra to lay my tile on, once I figure out with the bounce is my floor is acceptable.
cdnNick is offline   Reply With Quote
Old 04-18-2013, 08:15 AM   #34
Bill Kearney
 
Join Date: Apr 2009
Location: Bethesda, MD USA
Posts: 1,922
Rewards Points: 1,006
Default

Trying to figure out what might have cracked our tiled floor


Quote:
Originally Posted by cdnNick View Post
So I have ripped up the tile in the foyer and have some new info and photos. The OSB seems to have nails about every 12 inches on 1 side of the seam of the T&G to the joist. The plywood on top was screwed down to the OSB about every 6-8 inches around the edge and about every 10-12 inches on the inside. In the first picture I removed two pieces of plywood (purple and blue) and the crack was running along the edge of the two pieces of plywood.

I'm not sure I understand why only one side of the seam has nails in it, the OSB that is hi-lighted in blue I only found 1 nail in it in that whole area (about 28" wide).

If I step about 12" to the side of the OSB joint and you can see the floor flex a bit, this puts be right in the middle of the joists.

The 2nd photo is a general overall shot and the 3rd picture is where the biggest and longest crack was. Notice all the extra mortar, I think they tried to repair it at one point.

I've never ripped up a ceramic floor but it took me about 2 hours with my sons (1yr + 4yr) "helping". It kind of felt too easy.
Couldn't quite tell from the pics and what you posted, but are you telling us the edges of the plywood/OSB were not laid over the joists? And that panels of it had their seams unsupported below? If so, yeah, that's a problem. You really do want the edges of a panel, or any lumber for that matter, to be supported. Otherwise that just presents any area where pressure will cause it to flex. Now that you've pulled up the tile then if the subfloor isn't consistent then you might as well make it consistent. Pull it and glue & screw the new stuff down properly.
wkearney99 is offline   Reply With Quote
Old 04-18-2013, 08:30 AM   #35
Member
 
Join Date: May 2011
Location: Ottawa, Canada
Posts: 71
Rewards Points: 75
Default

Trying to figure out what might have cracked our tiled floor


The OSB joint is on the joist in that first photo, the plywood joint was about 6 inches away from the joist so the joint is resting solely on the OSB. Somewhere closer to the bathroom the OSB is laid down in the opposite direction as I can see the joints running across the joists from the basement. Sadly, the process is a bit slow as I can't work past 7 since I would keep the kids awake.
cdnNick is offline   Reply With Quote
Old 04-25-2013, 11:02 AM   #36
Member
 
JetSwet's Avatar
 
Join Date: Jan 2012
Location: Lagrangeville NY
Posts: 957
Rewards Points: 500
Default

Trying to figure out what might have cracked our tiled floor


Quote:
Originally Posted by cdnNick View Post
All I did to the floor was sweep it, what you see on the plywood is what was left after breaking or prying up the tile. As I said before it felt way to easy when I was pulling it up. I plan on using Ditra to lay my tile on, once I figure out with the bounce is my floor is acceptable.
You can not use ditra over osb or most membranes for that matter.
JetSwet is offline   Reply With Quote
Old 04-25-2013, 11:20 AM   #37
Member
 
Join Date: May 2011
Location: Ottawa, Canada
Posts: 71
Rewards Points: 75
Default

Trying to figure out what might have cracked our tiled floor


It will be installed on plywood which will be over the OSB.
cdnNick is offline   Reply With Quote
Old 04-25-2013, 11:27 AM   #38
Member
 
JetSwet's Avatar
 
Join Date: Jan 2012
Location: Lagrangeville NY
Posts: 957
Rewards Points: 500
Default

Trying to figure out what might have cracked our tiled floor


Quote:
Originally Posted by cdnNick View Post
It will be installed on plywood which will be over the OSB.
Ok cool!

JetSwet is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to anchor toilet flange to porcelain tile? bobmg Plumbing 32 08-19-2013 09:32 PM
Seal Peel and Stick Tiles? Echo1 Flooring 21 06-22-2012 09:07 PM
Grout lines in shower floor cracked and mortar is oozing out. megg Flooring 2 03-30-2010 06:35 AM
tiled shower floor Susan8 General DIY Discussions 5 03-07-2009 04:23 PM
Corner prefab shower & tiled floor pengu1@quickclic.net Tiling, ceramics, marble 4 11-09-2008 02:28 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.